2139418 has 8 divisors (see below), whose sum is σ = 3215520. Its totient is φ = 1067580.

The previous prime is 2139409. The next prime is 2139427. The reversal of 2139418 is 8149312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2139409) and next prime (2139427).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963 + ... + 2281.

It is an arithmetic number, because the mean of its divisors is an integer number (401940).

2^2139418 is an apocalyptic number.

2139418 is a deficient number, since it is larger than the sum of its proper divisors (1076102).

2139418 is a wasteful number, since it uses less digits than its factorization.

2139418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132.

The product of its digits is 1728, while the sum is 28.

The square root of 2139418 is about 1462.6749468012. The cubic root of 2139418 is about 128.8541909615.

It can be divided in two parts, 21394 and 18, that added together give a palindrome (21412).

The spelling of 2139418 in words is "two million, one hundred thirty-nine thousand, four hundred eighteen".